Joseph hamelut



J. HAMELIN.

ROTARY STEAM ENGINE` APPLICATION msn APR. n, 1919.

Patented Nov. 11, 19m.

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War/rey J. HAMELIN.

ROTARY STEAM ENGINE.

APPLICATION FILED APR. II, I9I9.

Patented N 0V. 11, 1919.

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UNITED STATES PATENT oEEicE.

JOSEPH HAMELIN, OF BIENVILLE, QUEBEC, CANADA.

ROTARY STEAM-ENGINE.

To all whom t may concern:

Be it known that I, JOSEPH HAMELIN, a British subject, residing atBienville, county of Levis, in the Province of Quebec, in the Dominionof Canada, have invented certain new and useful. Improvements in RotarySteam-Engines; and I do hereby declare that the following is a full,clear, and exact description of the same. v

The present invention relates to improvements in rotary steam enginesand the main object is toprovide an apparatus of this character in whichthe steam supply will be automatically regulated or cut olf.

Another object` is to Yprovide `a turbine of simple design andparticularly cheap of construction.

A further object of the invention is to provide a steam chamber havingarranged in it an eccentrically disposed drum to vallowv for steamexpansion, said drum being provided with a central rotating paddle whichis slidably mounted vin said drum.

The invention will be understood with the aid of the accompanyingdrawings in which:

Figure 1 is a side elevation of the turbine, the upperhalf portion beingshown in a longitudinal section. Y

Fig. 2 is a cross section view on line 2-2 of Fig. 1. f l

Fig. 3 is a front elevation of theV steam supply valve controllingVdevice.

.Fig 4 is a longitudinal section on line 4-4 of Fig. 3.

Fig. 5 isv a cross section through the eecentrically mounted drum.

Like numerals of reference lndicate cor- In the drawings 1 indicates thebase and 2 is a circular casing having at one side thereof an opening 3closed Eby a plug 4. 5 and 6 are outlet and inlet steam passagesprovided in the sides of said casing, said passages communicating atoneend with the interior of said casing 2 and at theirv otherv end witha circular valve casing 7 which is preferably integral with said casing2.' At each open Vend of said casing 2 are cover plates `8 andl 9 whichare suitably secured supply pipe.

Specicaton ofLetters Patent. rPatented NOV.- 11, 1919.

Applicatit'm iiled April 11, 1919. Serial N0. 289,374. i

thereto, by means of the bolt 10. Each of said cover plates 8 and 9iscprovided with corresponding eccentrically disposed openings 11 landjournal bearings 12 in whichV 1s` rotatably mounted the cross shaft 13.Rigidly secured on saidl cross shaft 13V is a drum 14 which ispreferably of the same width as said casing 2 and is provided with acentral slot 15 which extendstherethrough and is adapted to registerwith the slot 16 1n the shaft'l. The said drum 14` may ibe provided witha pluralityV of longitudinal packing stripsl which are utilized to formav stanch friction joint between said drum and the adjacent portion of'said casing 2.

The drum 14 being eccentrically mounted 1n relation tothe casing 2 formsa steam eXpa-ndlng chamber 18 which is adapted to communicate on eachside of said drum with the outlet and inlet passages 5 and 6.

Movably mounted within said slots 15 and 16 in the drum andV cross shaftis a rectangular blade 19 which is provided with curved ends adapted tobein continuouscontact wlth the inner circumference of said caslng 2',said blade being provided with a `which is suitably secured to thecasing x7 .and is provided with. the steam inlet 26 to which ispreferably connected the steam Intermediate of said valve c'asmgs 7 and24 is a passage 27 adapted to communicate with. the passage 22 and whichmay be used as an independent steam inlet when suitably connected to thesteam' supply pipe. The steam supplied through-this independent inletmay be additional to that supplied through the main inlet'26, or'it maybe utilized in place of that supplied through'said main inlet, accordingas preferred. In ther4 latter instance, theV fout-oit plurality offriction members 2O mounted in I saV valve 32 will have no effect uponthe opera.- tion of the engine and may, if desired, be thrown out ofaction by uncoupling its driving connections. The valve casing 7 is alsoprovided with an exhaust opening 28, and 29 is a circular valve memberrotatably mounted in said casing 7 and provided with a diametric passage30, of a funnel shape at one end thereof which is adapted to registerwith the passage 22 and one of the passages 5 or 6 at the other end 31are exhaust passages provided on each side of said central passage 30`and which are adapted to communicate with one of the passages 5 or 6 andthe exhaust port or opening 28.

In the valve casing 24 is rotatably mounted a valve member 32 having acentral passage 33 which is adapted to register with the passage 23 andsteam inlet 26. The valve members 29 and 32 are preferably provided Withoutwardly projecting stems 34 and 35, the stem 3ft being preferably manually operated by any suitable means, while the stem 35 is automaticallyoperated by an eccentric 36 which is rigidly secured on one end of theshaft 13 and on which is slidably mounted an eccentric strap 37 which isoperatively connected to thel adjustable member 38 slidably mounted onthe frame or arm 39, by the connecting rod 40. The :Era-me 39 is rigidlymounted on the stem 35, and 4-1 is a threaded pin having a cross head orhandle 42 adapted to adjust the slida'ble member 38.

In` the operation of the invention, the steam enters through the inlet26, and passes through the passage 33 in thevalve 32, and thence throughthe passages 23 and 22, the latter of which communicates with the funnelshape passage 30 which leads into one of the passages 5 or 6. Steamenters the chamber 18 in the chamber 2, which is so devised as` toprovide for the proper expansion of the steam, at the same time causingthe rectangular blade 19 slidably mounted in the drum 14 to revolveuntil it passes by the exhaust passage provided in said casing 2. i

In the drawings the exhaust passage 5 registers with the exhaust port 31provided in the valve 29, and the exhaust steam passes through the saidport 31 and enters the steam outlet 28 provided at one end of said valvecasing 7. To reverse the turbine, the stem 34 may be operated.

W'hen the rectangular blade 19 has reached al predetermined point thesteam supply through the inlet 26 is automatically cut orf by the valve32 which isV operated by the eccentric 36 provided on the shaft 13.

It will readily be understoodthat the Vintermittent cutting ofi' of thesteam is regulated by screwing or unscrewing the threaded pin l1 whichdistances or approaches the slidable member 38 on which is pivotallysecured the arm et() connected to the eccentric strap.

What I claim as my invention is:

1. In a rotary steam engine, the combination of a main casing having apair of di verging steam passages formed in its circumferential wall andopening at their inner ends into the casing, the outer ends of thepassages being disposed close together; a shaft mounted eccentrically onsaid casing; a drum fixed to said shaft and provided with a slidingblade; a valve casing rigidly connected to the main casing and intowhich the outer ends of the two steam passages directly open, saidcasing having a flared exhaust opening at one end; a re versing valverotatably mounted in the valve casing and formed with a diametric inletpassage having one end adapted to register alternatively with the outletend or either steam passage and the other end iiared, said valve alsohaving a pair of separate exhaust passages adapted to alternativelyregister at one end with the said steam passages and opening in commonthrough the end of the valve adjacent said flared exhaust opening so asto constantly register therewith; a valve casing at theside of andconnected to the reversing valve casing and having a connecting portwhich opens therethrough and constantly registers with the iiared end ofthe inlet passage inthe reversing valve; and a cut-off valve rotatablymounted in the last-named casing and having a diametric passage adaptedto be brought into and out of register at one end with the connectingport, the said last-named casing having a steam inlet which is adaptedto register with the other end ot the diametric passage in the cut-olfvalve.

2. In a rotary steam engine, the combination of a main casing having apair of diverging steam passages formed in its circumferential wall andopening at their inner ends into the casing, the outer ends of thepassages being disposed close together vand openingoutwardly throughsaid wall;

a rotary piston vwithin the casing; a valve casing rigidly connected'tothe main kcasing and into which the outer ends of the twoy steam,passages directly open; a reversing valve rotatably mounted in thevalve casing and formed with inlet and ex haust passages for controllingthe flow of steam to and from said steam passages; a valve casing at theside of and connected to the reversing valve casing and having aconnecting port which leads through the latter valve casing to registerwith the inlet passage in the reversing valve;v and a cutoff Valverotatably mounted in the last- Opposite side ofthe out-off ValveWhiclmpens 10 named Valve casing and having a passage into saidconnecting port.

adapted to be brought into and out ofreg- Signed' at Montreal, Quebec,Canada, this ister With the inlet end of the connecting 17th day ofMarch, 1919.

port; the easing of the eut-off valve hav` JOSEPH HAMELIN ing a mainsteam inlet at one sicle of that valve and adapted to communicate withthe Witnesses:

inlet end of the passage thereon; and also C. PATENCUTDE,

having an independent steam inlet at the B. WOOD.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. G.

